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Victoria worms, flies and lice update - December 2019

WormTest with the Best

Special thanks to PARA-TECH VETERINARY SERVICES, one of the "reference" laboratories due to their highly accurate results.

The following are successful participants in the 2019 ParaBoss WEC QA and have demonstrated proficiency in worm egg counting.


Hamilton: Andrew Whale, Livestock Logic (a.whale@livestocklogic.com.au) and Lexie Leonard, Livestock Logic (l.leonard@livestocklogic.com.au)

Spring has continued well into summer for the Hamilton region, with mild temperatures and moisture up to mid-December. Feed has been both abundant and high quality, and we have seen great results at weaning for spring lambing flocks.

Producers are advised to ensure lambs are monitored closely, both visually and with regular WormTests after weaning. Mild temperatures and green feed mean worm larvae will survive well in pastures and have the potential to cause serious worm problems in young stock. A lot of producers are leaving lamb and weaner worm egg count monitoring until these sheep have significant worm burdens, but any worm burden will affect production.

In general, worm egg counts have been low and not many mobs have required drenching as of mid-December. Although the temperatures are expected to rise over the next week, we don’t expect worm burdens to also increase significantly in the coming weeks. Worm egg counting of mobs prior to any drenching is highly recommended to ensure they have a worm burden worth drenching. We expect a lot of sheep will not require a first summer drench this year due to low worm burdens, however, they will still need monitoring over summer, especially if we have any rainfall.

Increased fly activity is expected now temperatures are set to increase, so ensure you are prepared for fly control, especially in younger animals.